It is very important for fish farming to get efficient stocking plan

After a round of cultivation, farmers should plan early and plan for new crops based on changes in market demand, pond conditions, seed and feed sources, aquaculture technology, capital input, and past experience. A round of fish species stocking plans lays a solid foundation for achieving the best aquaculture benefits. Stocking planning mainly considers the following aspects:

First, breeds. It is necessary to have a foresight to identify aquaculture species, and to select a variety of varieties with good marketability and good economic returns to be the mainstay. For the current stage, the breeding technology is not yet mature, the feed is not guaranteed, the seed source is difficult or the market share is small, and the price The undulating species, such as squid, black peony, yellow peony, and white peony, must be carefully selected when planning. The species with less certainty should not be blindly reared on a large scale, but can be cultivated or bred in small areas first. After the mature experience is achieved, expand the culture area to avoid risks.

Second, the breeding cycle. The breeding period refers to the time required for the raising of fish to grow commercial fish from seedlings. Should choose a short cycle, rapid recovery of funds, strong market demand, high economic returns breed. According to the size of the arrest, the number of times to determine the size of stocking species. For long-cultivated species, we must first conduct technical research and predict the economic benefits of breeding, must not behave rashly.

Third, polyculture ratio. The formulation of stocking plans should be based on the food habits and habitat habits of fish, and comprehensively consider the factors such as feed sources to reasonably determine the proportion of cultured species, in order to make full use of the bait and water resources on the surface of the water, and to play a mutually beneficial relationship between farmed fish. Increase the stocking density of the entire water body, thereby increasing the yield and economic efficiency of fish ponds. In general, natural and artificial baits in ponds are mainly plankton, benthic organisms, aquatic grasses, dry grasses, organic detritus, and various commodity feeds. Natural baits are used by different fish, and the food bait that is fed is mainly eaten by grass-catching fish such as grass carp and squid, and some of the smaller pellets are eaten by catfish, scorpion fish, and various small-sized fish species. Food, as well as some powdery feeds, can also be used by squid and squid, and all commercial feeds can be directly and effectively consumed. The feces of eating fish can provide a lot of organic debris for squid and squid, and provide enough fertilizer for plankton to play a role in bait re-use. At the same time, squid and squid also play a role in regulating water quality and reducing the eutrophication of the water environment.

Fourth, stocking density and specifications. The stocking density and yield are proportional to a certain range, and the stocking density increases, and the yield also increases. However, a reasonable stocking density must achieve the highest yield at the surface of the water. At the same time, it must ensure that the fish out of the market meet the specifications required by the market in order to achieve better economic returns. Therefore, the stocking density must be determined in accordance with the level of pond management and capital investment. set. Different breeds have different weight gain times, and the stocking density is generally divided by the fish's output by the weight gain multiple of the fish, and the number of stocking fish is obtained.

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